MATHEMATICS COLLEGE

PLEASE HELP IF YOU KNOW THIS!!!!!

Answers

Answer 1

Answer:

Answer:

7cm

Step-by-step explanation:

3cmx3cm=9cm

9cmx3.14=28.26

28.26/197.9=7 (plus a bunch of decimals!)

So 7cm is your height

Answer 2

Answer:

7.50 is the answer so either 7 or 8

Step-by-step explanation:

h= (A/2piR) -r

Plug in the area and the radius and you got the answer. Use 3.14 as pi

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Which of the following shows the intersection of the sets? {1, 5, 10, 15} {1, 3, 5, 7}

Answers

Answer:

{ 1,5}

Step-by-step explanation:

The intersection is what the two sets have in common

{1, 5, 10, 15}∩ {1, 3, 5, 7}

= { 1,5}

Answer:

{1,5}

Step-by-step explanation:

The intersection of the sets are all of the numbers that appear in both sets. In this case, the only numbers that appear in both are 1 and 5.

A class has 30 people at the beginning of the school term but now has five pupils what is the percent of increase

Answers

17 percent increase 5/30

The constant in the expression 8x 3 + 4x 2 – 9 is

Answers

Answer : 9

Step-by-step explanation:

The answer is 9 because a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number.

Find the total amount of interest on a savings account if the principal is $9400 and the bank gives a rate of 6% compounded quarterly for the next 6 years.

Answers

Answer:

4037.3264$

Step-by-step explanation:

Total amount of money after 6 years:

A = P x (1 + rate)^time

= 9400 x ( 1 + (6/100)/4)^(6 x 4)

= 13437.3264$

=> Total amount of interest after 6 years:

I = A - P = 13437.3264 - 9400 = 4037.3264$

Solve equation by using the quadratic formula.[x^{2} + 4x = -4

a. x = -2

b. x = -4

c. x = -4, x = 4

d. x = 0, x = 4

Answers

ANSWER IS C because I looked it up

What is the system of checks and balances designed to ensure?

Answers

Answer:

ensure that no single branch of government would have too much power

Step-by-step explanation:

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